Machine for manufacturing roofing-paper



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M. EHRET. r r I MACHINE FOR MANUFACTURING ROOFING PAPER.

No. 565,336. Patented Aug. 4, 189.6.

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A Patented Aug. 4, 1896.

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MACHINE FOR-MANUFACTURING ROOFING PAPER. No. 565,336. Patented Aug. 4,1896.

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UNITED STATES PATENT GFFICE.

MICHAEL EHRET, OF PHILADELPHIA, PENNSYLVANIA.

MACHINE FOR MANUFACTURING ROOFING-PAPER. A

SPECIFICATION forming part of Letters Patent No. 565,336, dated August 4, 1896.

Application filed May 25, 1896. Serial No. 592,984. (No model.)

To aZZ whom it may concern.-

Beit known that I, MICHAEL EHRET, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Machines for Manufacturing Roofing-Paper, of which the following is a specification.

My invention relates to that class of machines for manufacturing roofing fabric in which two or more plies of roofing-felt or like material are passed between rolls, whereby they are pressed together, pitch, tar, asphaltum, or other cementing material being introduced between the plies where they pass down between the rolls, so that when they are pressed together by said rolls they will be firmly united and a multiple-ply web will be thereby formed.

The object of my invention is to so construct such a machine as to adapt it for the production of sheets or webs of different widths, and this object I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which Figure l is a side view of a roofing-machine constructed in accordance with my invention. Fig. 2 is a longitudinal section of part of the machine, showing the same adapted for the production of wide webs. Fig. 3 is a similar longitudinal section showing the gnachine adapted for the production of narrow webs. Fig. 4 is a transverse section on the line 4 4., Fig. 2. Fig. 5 is a transverse section on the line 5 5, Fig. 2. Fig. 6 is a transverse section on the line 6 6, Fig. 3; and Figs. 7 and 8 are views illustrating a modification of the invention.

In Fig. 1, A A represent the two rolls, the journals of which are adapted to suitable boxes in bearings on the side frames B B of the machine, these rolls being driven by any suitable system of gearing, so as to rotate toward each other.

To suitable bearings on the side frames of the machine are adapted the journals of three rolls D, D, and D of roofing felt, paper, or other material, which is to be combined to form a mu1tip1e-ply web, the webs from these three rolls being suitably directed over and down between the press-rolls A A. The said press-rolls A A are grooved or recessed at each end, so as to form bearings for blocks F, each the rolls, as shown in Fig. 2.

having curved seats resting upon the reduced portions of the press-rolls, these blocks extending upward to or above the tops of the rolls and the central portions of the blocks also extending downward to or beyond the center of the rolls. The upper portions of the rolls and these end blocks thus form a chamber for the reception of pitch, tar, asphaltum, or like cementing agent, whereby the webs, before being pressed together, become coated with the cementing material and are by the pressure firmly united into a multiple-ply web.

The rolls A A of my improved machine have grooves at one or more points between the opposite ends. Thus, as shown in Figs. 2 and 3, each roll has grooves a at points equidistant'from each end.

When the machine is used for the production of webs of the full width of the roll or of any webs wider than the distance between the grooves a, said grooves are filled by segmental blocks 19, suitably secured in place in the grooves, so that the rolls will present a continuous surface, the blocks F in this case occupying their usual position at the ends of Vhen, however, it is desired to produce narrower webs, the fillingblocks are removed from the grooves a and the blocks F are transferred from their positions at the ends of the rolls to said grooves a, as shown in Fig. 3, so that the trough or chamber for the reception of the cementing material is now of a width equal only to the distance between the grooves C666, and the machine is adapted for the production of narrow webs without the use of an undue quantity of said cementing material.

Although I have shown each roll as provided with but a single pair of grooves a a, it will be evident that the rolls may have as many grooves as desired in order to adapt them for the production of webs of different widths, or, on the other hand, each roll may have but a single groove for receiving one of the blocks F, the other block retaining its position at one end of the roll.

In Figs. 7 and 8 I have shown rolls having a central groove a in addition to the grooves at, these rolls being adapted for the production of a wide web when all of the grooves a a are filled by blocks 1) and the blocks F are at the ends of the rolls, or of a narrower web when the central groove a has the blocks Z) and the blocks F are applied to the grooves a, as in Fig. 7, or of two narrower Webs when the grooves a are filled by blocks 1) and a block F is used in the central groove a in addition to the blocks F at the ends of the rolls, as shown in Fig. 8, or of two still narrower webs when the blocks F and F are applied to the grooves a and a, respectively.

The blocks to be applied to the grooves a or a, to form the ends of the cement-chamber, may be independent of the blocks F, to be used at the ends of the rolls, if desired, in which case the grooves a or a may be wider or narrower than said blocks F.

Having thus described my invention, I

claim and desire to secure by Letters Patent- MICHAEL EHRET.

Witnesses:

H. F. REARDON, WILL. A. BARR. 

